Venetian blind



Original Filed Sept. 4, 1926 Patented Mar. 31, 1931 UNITED STATES PATENT OFFICE ARTHUR H. DODGE, DECEASED, LATE OF NEW YORK, N. Y., BY KATHERINE DODGE, EXEGU'IRIX, OF NEW YORK, N. Y., ASSIGNOR TO 3'. G. WILSON CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA Original application filed September. 4, 1928, Serial No. 138,585. Divided and this application filed August 8, 1929. Serial No. 384,340.

This present invention relates to a Venetian blind and more particularly to that type of Venetian blind in which there is employed a traverse roller, 21. tilting bar, a plurality of slats, and means for supporting the slats in spaced positions, together with the usual devices for operating these parts in the customary manner. The special features of the construction comprising this invention relate more particularly to the employment of devices for maintaining the slats of the blind in a predetermined relationship to the window casing to prevent the slats from striking and mutilating the window frame and obviating the resultant noise or rattle which is otherwise caused by the slats striking the window frame, the said devices detachably connecting the slats or predetermined slats to the window frame. Furthermore, the entire structure is so made as to be demountable when the slats are detached from the window frame making it possible to lift the entire blind structure into and out of place as oocasion or necessity may require.

In the drawing Figure 1 is a front elevation of a Venetian blind made in accordance with the present invention,

Fig. 2 is an enlarged sectional plane on line 7-7, Fig. 1,

Fig. 3 is a section on line 8-8, Fig. 2,

Fig. 4 is a section on line 99, Fig. 2,

Fig. 5 is a view similar to Fig. 2 illustrating another form of the devices for connecting predetermined slats of the blind to the window frame,

Fig. 6 is a sectional elevation illustrating the relationship between the slats when in the extreme tilted position.

Referring to the drawings the side members of a window frame or casing are indirated at 10 and 11 and the top or upper cross piece thereof at 12. The support bar for the Venetian blind structure is indicated at 13. Secured to the opposite ends of the support bar 13 there are brackets 14 and 15. A traversc roller 16 is mounted in the brackets 14 and 15 as is also a tilting bar 17. The tilting bar is operated by a tilting cord 18 and the traverse roller 16 is actuated by an oper-- ating cord 19. Support cords 20 and 21 are associated witlrthe traverse roller 16 and the usual tapes 22 and 23 are secured to the tilting bar and support the slats 24 in the customary manner.

The traverse roller 6 is preferably tubular and at one end is fitted with a head or plug suitably secured in position therein by a set screw or otherwise A stub shaft 26 is suitably secured in the bracket 14 and passes through an opening provided therefor in the head so that the sameacts as a bearing for the traverse roller at this end thereof. At the opposite end the traverse roller 16 is provided with a head or plug which may be suitably secured therein by a set screw or otherwise. A stub shaft 30 is suitably secured in the bracket 15 and preferably so as to be in alignment with the stub shaft 26. This stub shaft 30 is screw threaded and passes through a screw threaded opening in the head.

The traverse roller 16 is provided in suitable positions with holes through which the ends of the support cords 20 and 21 pass and are knotted or otherwise secured. The traverse roller is actuated by the operating cord 19 which passes around a roller mounted in a bracket which is suitably secured to the support bar 13 or otherwise, it being understood that a. portion of this operating cord passes around one end of the roller 16 and has its extremity suitably secured in the said roller so that by pulling the operating cord the roller may be turned to wind the su port cords 20 and 21 thereon, and due to t e structure hereinbefore described is simultaneously shifted so as to move at the necessary speed to coil the support cords thereon in raising the slats of the blind. The operatwith trunnions 39 and 40, by means of which it is mounted in the lower end of the brackets 14 and 15 between which this tilting bar extends. A suitable friction or brake device is employed for maintaining the tilting bar and consequently the slats of the blind in any of their respective positions.

When in their extreme positions, however, the friction is decreased to such an extent that the movement of the tilting bar may be readily effected in either direction.

The invention resides in the use of devices for maintaining the slats in position relatively to the window frame in order to prevent the slats from shifting relatively thereto due to wind pressure, the action of gravity or other similar conditions. To this end, as shown in Figs. 2, 3 and 4, the ends of predetermined slats are fitted,with yoke members 54. Each of these yoke members spans the end of a slat and is connected thereto by rivets, or in any other suitable manner so as to extend across the end of the slat. The cross piece of each yoke is slotted, as indicated at 55, and the adjacent portion of the end of the slat recessed, as indicated at 56. Associated with each of these yokes is a detachable pin 57. At one end the pin 57 is provided with a transverse head 58 adapted when the slat is in alignment therewith to pass through the slot 55 and to enter and lie within the recess 56. In no other position,- however, will the head of the pin pass through the slot, and consequently when in place the pin cannot be removed except by placing the head in this position. The pin 57 in this structure isconnected to an arm 59 secured in a suitable manner to a slide 60. The slide 60 is adapted to operate in a guide rail 61 suitably secured to the outer face of the window frame so that as the slats are raised and lowered the slide moves within the guide. It will be understood that the opposite ends of predetermined slats are similarly provided with the yokes and the slide and guide structure by which a-predetermined relationship is maintained between the slats and the window casing. As indicated in Fig. 5, the pin 62 which corresponds to the pin 57 may be directly connected to a slide 63 adapted to move within a guide 64 placed on the inner face of the window casing, and that this structure is the equivalent of that hereinbefore described and may be used in place thereof where it is necessary or desirable to do so.

From the foregoing description it will now be understood that in the Venetian blind constructed in accordance with this invention the entire blind structure may be mounted and dismounted and when in positionthe slats maintained in place relatively to the window frame in which the blind is used.

The claims are:

1. In a Venetian blind for a window havby when the slat is in a predetermined position it is connectable to and disconnectable from the pin, while .in other positions the slat is connected to the pin to maintain the slot in position relative to the frame of the window.

2. In a Venetian blind for a window having a support member, a tilting bar, a plurality of slats carried by the tilting bar, a traverse roller, means for operating the tilting bar to adjust the position thereof and that of the slats, means for actuating the traverse roller to raise and lower the slats, and a guide rail connected to the window casing, a slide cooperating with the guide rail, a pin connected to the slide, a flat sided head at the end of the pin, and a yoke connected to the end of a slat, the yoke being slotted for receiving the head of the pin when the slat is in one position and to prevent the passage of the head when the slat is in any other position whereby the slat when in the receiving position is connectable to and disconnectable from the pin and in other positionsis maintained in position relative to the frame of the window.

3. In a Venetian blind for a window having a support member, a tilting bar, a plurality of slats carried by the tilting bar, a traverse roller, means for operating the tilting bar to adjust the position thereof and that of the slats, means for actuating the traverse roller, to raise and lower the slats, and a guide rail connected to the window casing, a slide cooperating with the guide rail, a pin connected to the slide, a flat sided head at the end of the pin and a yoke connected to the end of a slat, the yoke being slotted for receiving the head of the pin when the slat is in one position and to prevent the passage of the head when the slat is in any other position whereby the slat is detachably connected to the pin and is maintained in position relative to the frame'of the window.

4. In a Venetian blind for a window having a plurality of slats, and means for supporting and raising and tilting the slats, a sliding device attachable to the window casing, and means whereby when a slat is in a predetermined position it is connectable to and disconnectable from the sliding device and when in other positions is-irremovably connected thereto in order to prevent the slat from moving laterally relatively to the window casin 5. In a Venetianblind for a window havllll messes ing a plurality of slats, and means for operating the slats to raise, lower and tilt the same, a sliding device attachble to a window casing, a pin carried by the sliding device, and means at the end of a slat whereby when only in a predetermined position the slat is connectable to and disconnectable from the pin and when in other positions is irremovably connected thereto in order to prevent the slat roni moving laterally relatively to the winis in a p dot the pm only par versely relatively to the window casing.

T in a Venetian blind having a plurality of tiltable slats, a tilting bar for tilting and supporting the slats, a guide rail secured to a window casing, anchoring means associated with the end of one or more of said slats, a pin extending between said anchoring means and guide rails" said pin and slat having cooperating detachable means for connecting the same, whereby when the slat is turned to a predetermined position it is connectable to and disconnectable from the guide rail, and in other positions the slat is pivotally supported and irremovably connected to the said guide rail.

8. ln a Venetian blind having a plurality of tiltable slats, a tilting bar for supporting and tilting the slats, a guide rail secured to a window casing, anchoring means associated with the end of: one or more of said slats, a pin slidably connected to the guide rail and extending between the same and said anchoring means, the pin and slat having cooperating detachable means whereby the slat and guide rail are so connected that when the slat is turned to a predetermim d position it is connectable to and disconnettable from the guide rail, and in other positions the slat is irreinovably connected to the said guide rail.

9. in a Venetian blind having a plurality of tiltable slats, a tilting bar for supporting and tilting the slats, a guide rail secured to a window casing, a movable slide associated with said rail, a pin associated with said slide and one of said slats, and detachable interlocking means for said pin associated with one of said movable elements whereby said is connectable to and disconnectable from r .e of said elements when said slat is turned i. a i rerleterniir position. 1

ill In a Vt I blind assembly having means for tilting and supporting a plurality of tiltable slats, a lifting cord for raising the slats, a guide rail secured to a window casing, a movable slide associated with said rail and slats, and disconnectable securing means providing a pivotal connection between said slide and one of said slats whereby the slats when turned to a predetermined revolvable position is detachable from the slide While the blind is assembled in the window.

ll. in a Venetian blind having a plurality of tiltableslats,alifting cord for raising the slats, a tilting cord for tiltingthe slats, a guide rail secured to a window casing, a movable slide associated with said rail, and removable securing means between said slide and one of said slats, said means including a pin and slot connection facilitating the removal of said slat by turning the same to a predetermined position while in operative assembly.

Signed by me this 26th day of July, 1929.

KATHERINE DODGE, Ememtfim of the Estate of Arthur H. Dodge,

Deceased. 

